- 06 Feb, 2021 1 commit
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Eric Dumazet authored
Commit c8079432 ("net: Fix packet reordering caused by GRO and listified RX cooperation") had the unfortunate effect of adding latencies in common workloads. Before the patch, GRO packets were immediately passed to upper stacks. After the patch, we can accumulate quite a lot of GRO packets (depdending on NAPI budget). My fix is counting in napi->rx_count number of segments instead of number of logical packets. Fixes: c8079432 ("net: Fix packet reordering caused by GRO and listified RX cooperation") Signed-off-by: Eric Dumazet <edumazet@google.com> Bisected-by: John Sperbeck <jsperbeck@google.com> Tested-by: Jian Yang <jianyang@google.com> Cc: Maxim Mikityanskiy <maximmi@mellanox.com> Reviewed-by: Saeed Mahameed <saeedm@nvidia.com> Reviewed-by: Edward Cree <ecree.xilinx@gmail.com> Reviewed-by: Alexander Lobakin <alobakin@pm.me> Link: https://lore.kernel.org/r/20210204213146.4192368-1-eric.dumazet@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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- 05 Feb, 2021 10 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfJakub Kicinski authored
Pablo Neira Ayuso says: ==================== Netfilter fixes for net 1) Fix combination of --reap and --update in xt_recent that triggers UAF, from Jozsef Kadlecsik. 2) Fix current year in nft_meta selftest, from Fabian Frederick. 3) Fix possible UAF in the netns destroy path of nftables. 4) Fix incorrect checksum calculation when mangling ports in flowtable, from Sven Auhagen. * git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf: netfilter: flowtable: fix tcp and udp header checksum update netfilter: nftables: fix possible UAF over chains from packet path in netns selftests: netfilter: fix current year netfilter: xt_recent: Fix attempt to update deleted entry ==================== Link: https://lore.kernel.org/r/20210205001727.2125-1-pablo@netfilter.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Vadim Fedorenko authored
PACKET_TX_TIMESTAMP is defined in if_packet.h but it is not included in test. Include it instead of <netpacket/packet.h> otherwise the error of redefinition arrives. Also fix the compiler warning about ambiguous control flow by adding explicit braces. Fixes: 8fe2f761 ("net-timestamp: expand documentation") Suggested-by: Willem de Bruijn <willemdebruijn.kernel@gmail.com> Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru> Acked-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/1612461034-24524-1-git-send-email-vfedorenko@novek.ruSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Vladimir Oltean authored
Since teardown is supposed to undo the effects of the setup method, it should be called in the error path for dsa_switch_setup, not just in dsa_switch_teardown. Fixes: 5e3f847a ("net: dsa: Add teardown callback for drivers") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20210204163351.2929670-1-vladimir.oltean@nxp.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Vladimir Oltean authored
Michael tried to enable Advanced Error Reporting through the ENETC's Root Complex Event Collector, and the system started spitting out single bit correctable ECC errors coming from the ENETC interfaces: pcieport 0000:00:1f.0: AER: Multiple Corrected error received: 0000:00:00.0 fsl_enetc 0000:00:00.0: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID) fsl_enetc 0000:00:00.0: device [1957:e100] error status/mask=00004000/00000000 fsl_enetc 0000:00:00.0: [14] CorrIntErr fsl_enetc 0000:00:00.1: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID) fsl_enetc 0000:00:00.1: device [1957:e100] error status/mask=00004000/00000000 fsl_enetc 0000:00:00.1: [14] CorrIntErr Further investigating the port correctable memory error detect register (PCMEDR) shows that these AER errors have an associated SOURCE_ID of 6 (RFS/RSS): $ devmem 0x1f8010e10 32 0xC0000006 $ devmem 0x1f8050e10 32 0xC0000006 Discussion with the hardware design engineers reveals that on LS1028A, the hardware does not do initialization of that RFS/RSS memory, and that software should clear/initialize the entire table before starting to operate. That comes as a bit of a surprise, since the driver does not do initialization of the RFS memory. Also, the initialization of the Receive Side Scaling is done only partially. Even though the entire ENETC IP has a single shared flow steering memory, the flow steering service should returns matches only for TCAM entries that are within the range of the Station Interface that is doing the search. Therefore, it should be sufficient for a Station Interface to initialize all of its own entries in order to avoid any ECC errors, and only the Station Interfaces in use should need initialization. There are Physical Station Interfaces associated with PCIe PFs and Virtual Station Interfaces associated with PCIe VFs. We let the PF driver initialize the entire port's memory, which includes the RFS entries which are going to be used by the VF. Reported-by: Michael Walle <michael@walle.cc> Fixes: d4fd0404 ("enetc: Introduce basic PF and VF ENETC ethernet drivers") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Tested-by: Michael Walle <michael@walle.cc> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Link: https://lore.kernel.org/r/20210204134511.2640309-1-vladimir.oltean@nxp.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Andrea Parri (Microsoft) authored
Commit 44144185 ("hv_netvsc: Add validation for untrusted Hyper-V values") added validation to rndis_filter_receive_data() (and rndis_filter_receive()) which introduced NVSP_STAT_FAIL-scenarios where the count is not updated/reset. Fix this omission, and prevent similar scenarios from occurring in the future. Reported-by: Juan Vazquez <juvazq@microsoft.com> Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Fixes: 44144185 ("hv_netvsc: Add validation for untrusted Hyper-V values") Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Link: https://lore.kernel.org/r/20210203113602.558916-1-parri.andrea@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Willem de Bruijn authored
When iteratively computing a checksum with csum_block_add, track the offset "pos" to correctly rotate in csum_block_add when offset is odd. The open coded implementation of skb_copy_and_csum_datagram did this. With the switch to __skb_datagram_iter calling csum_and_copy_to_iter, pos was reinitialized to 0 on each call. Bring back the pos by passing it along with the csum to the callback. Changes v1->v2 - pass csum value, instead of csump pointer (Alexander Duyck) Link: https://lore.kernel.org/netdev/20210128152353.GB27281@optiplex/ Fixes: 950fcaec ("datagram: consolidate datagram copy to iter helpers") Reported-by: Oliver Graute <oliver.graute@gmail.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Alexander Duyck <alexanderduyck@fb.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20210203192952.1849843-1-willemdebruijn.kernel@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Alex Elder authored
In gsi_channel_setup(), we check to see if the configuration data contains any information about channels that are not supported by the hardware. If one is found, we abort the setup process, but the error code (ret) is not set in this case. Fix this bug. Fixes: 650d1603 ("soc: qcom: ipa: the generic software interface") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Elder <elder@linaro.org> Link: https://lore.kernel.org/r/20210204010655.15619-1-elder@linaro.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Xie He authored
It's not meaningful to pass on LAPB error codes to HDLC code or other parts of the system, because they will not understand the error codes. Instead, use system-wide recognizable error codes. Fixes: f362e5fe ("wan/hdlc_x25: make lapb params configurable") Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by: Xie He <xie.he.0141@gmail.com> Acked-by: Martin Schiller <ms@dev.tdt.de> Link: https://lore.kernel.org/r/20210203071541.86138-1-xie.he.0141@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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David Howells authored
At the end of rxrpc_release_call(), rxrpc_cleanup_ring() is called to clear the Rx/Tx skbuff ring, but this doesn't lock the ring whilst it's accessing it. Unfortunately, rxrpc_resend() might be trying to retransmit a packet concurrently with this - and whilst it does lock the ring, this isn't protection against rxrpc_cleanup_call(). Fix this by removing the call to rxrpc_cleanup_ring() from rxrpc_release_call(). rxrpc_cleanup_ring() will be called again anyway from rxrpc_cleanup_call(). The earlier call is just an optimisation to recycle skbuffs more quickly. Alternative solutions include rxrpc_release_call() could try to cancel the work item or wait for it to complete or rxrpc_cleanup_ring() could lock when accessing the ring (which would require a bh lock). This can produce a report like the following: BUG: KASAN: use-after-free in rxrpc_send_data_packet+0x19b4/0x1e70 net/rxrpc/output.c:372 Read of size 4 at addr ffff888011606e04 by task kworker/0:0/5 ... Workqueue: krxrpcd rxrpc_process_call Call Trace: ... kasan_report.cold+0x79/0xd5 mm/kasan/report.c:413 rxrpc_send_data_packet+0x19b4/0x1e70 net/rxrpc/output.c:372 rxrpc_resend net/rxrpc/call_event.c:266 [inline] rxrpc_process_call+0x1634/0x1f60 net/rxrpc/call_event.c:412 process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275 ... Allocated by task 2318: ... sock_alloc_send_pskb+0x793/0x920 net/core/sock.c:2348 rxrpc_send_data+0xb51/0x2bf0 net/rxrpc/sendmsg.c:358 rxrpc_do_sendmsg+0xc03/0x1350 net/rxrpc/sendmsg.c:744 rxrpc_sendmsg+0x420/0x630 net/rxrpc/af_rxrpc.c:560 ... Freed by task 2318: ... kfree_skb+0x140/0x3f0 net/core/skbuff.c:704 rxrpc_free_skb+0x11d/0x150 net/rxrpc/skbuff.c:78 rxrpc_cleanup_ring net/rxrpc/call_object.c:485 [inline] rxrpc_release_call+0x5dd/0x860 net/rxrpc/call_object.c:552 rxrpc_release_calls_on_socket+0x21c/0x300 net/rxrpc/call_object.c:579 rxrpc_release_sock net/rxrpc/af_rxrpc.c:885 [inline] rxrpc_release+0x263/0x5a0 net/rxrpc/af_rxrpc.c:916 __sock_release+0xcd/0x280 net/socket.c:597 ... The buggy address belongs to the object at ffff888011606dc0 which belongs to the cache skbuff_head_cache of size 232 Fixes: 248f219c ("rxrpc: Rewrite the data and ack handling code") Reported-by: syzbot+174de899852504e4a74a@syzkaller.appspotmail.com Reported-by: syzbot+3d1c772efafd3c38d007@syzkaller.appspotmail.com Signed-off-by: David Howells <dhowells@redhat.com> cc: Hillf Danton <hdanton@sina.com> Link: https://lore.kernel.org/r/161234207610.653119.5287360098400436976.stgit@warthog.procyon.org.ukSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Raju Rangoju authored
Signed-off-by: Raju Rangoju <rajur@chelsio.com> Link: https://lore.kernel.org/r/20210202182511.8109-1-rajur@chelsio.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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- 04 Feb, 2021 4 commits
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Juergen Gross authored
Since commit 23025393 ("xen/netback: use lateeoi irq binding") xenvif_rx_ring_slots_available() is no longer called only from the rx queue kernel thread, so it needs to access the rx queue with the associated queue held. Reported-by: Igor Druzhinin <igor.druzhinin@citrix.com> Fixes: 23025393 ("xen/netback: use lateeoi irq binding") Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Wei Liu <wl@xen.org> Link: https://lore.kernel.org/r/20210202070938.7863-1-jgross@suse.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Vadim Fedorenko authored
TLS selftests were broken also because of use of structure that was not exported to UAPI. Fix by defining the union in tests. Fixes: 4f336e88 (selftests/tls: add CHACHA20-POLY1305 to tls selftests) Reported-by: Rong Chen <rong.a.chen@intel.com> Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru> Link: https://lore.kernel.org/r/1612384634-5377-1-git-send-email-vfedorenko@novek.ruSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Sabyrzhan Tasbolatov authored
syzbot found WARNING in qrtr_tun_write_iter [1] when write_iter length exceeds KMALLOC_MAX_SIZE causing order >= MAX_ORDER condition. Additionally, there is no check for 0 length write. [1] WARNING: mm/page_alloc.c:5011 [..] Call Trace: alloc_pages_current+0x18c/0x2a0 mm/mempolicy.c:2267 alloc_pages include/linux/gfp.h:547 [inline] kmalloc_order+0x2e/0xb0 mm/slab_common.c:837 kmalloc_order_trace+0x14/0x120 mm/slab_common.c:853 kmalloc include/linux/slab.h:557 [inline] kzalloc include/linux/slab.h:682 [inline] qrtr_tun_write_iter+0x8a/0x180 net/qrtr/tun.c:83 call_write_iter include/linux/fs.h:1901 [inline] Reported-by: syzbot+c2a7e5c5211605a90865@syzkaller.appspotmail.com Signed-off-by: Sabyrzhan Tasbolatov <snovitoll@gmail.com> Link: https://lore.kernel.org/r/20210202092059.1361381-1-snovitoll@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Sven Auhagen authored
When updating the tcp or udp header checksum on port nat the function inet_proto_csum_replace2 with the last parameter pseudohdr as true. This leads to an error in the case that GRO is used and packets are split up in GSO. The tcp or udp checksum of all packets is incorrect. The error is probably masked due to the fact the most network driver implement tcp/udp checksum offloading. It also only happens when GRO is applied and not on single packets. The error is most visible when using a pppoe connection which is not triggering the tcp/udp checksum offload. Fixes: ac2a6666 ("netfilter: add generic flow table infrastructure") Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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- 03 Feb, 2021 4 commits
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Pablo Neira Ayuso authored
Although hooks are released via call_rcu(), chain and rule objects are immediately released while packets are still walking over these bits. This patch adds the .pre_exit callback which is invoked before synchronize_rcu() in the netns framework to stay safe. Remove a comment which is not valid anymore since the core does not use synchronize_net() anymore since 8c873e21 ("netfilter: core: free hooks with call_rcu"). Suggested-by: Florian Westphal <fw@strlen.de> Fixes: df05ef87 ("netfilter: nf_tables: release objects on netns destruction") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Fabian Frederick authored
use date %Y instead of %G to read current year Problem appeared when running lkp-tests on 01/01/2021 Fixes: 48d072c4 ("selftests: netfilter: add time counter check") Reported-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Jozsef Kadlecsik authored
When both --reap and --update flag are specified, there's a code path at which the entry to be updated is reaped beforehand, which then leads to kernel crash. Reap only entries which won't be updated. Fixes kernel bugzilla #207773. Link: https://bugzilla.kernel.org/show_bug.cgi?id=207773Reported-by: Reindl Harald <h.reindl@thelounge.net> Fixes: 0079c5ae ("netfilter: xt_recent: add an entry reaper") Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Christoph Schemmel authored
Adding support for Cinterion MV31 with PID 0x00B7. T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 11 Spd=5000 MxCh= 0 D: Ver= 3.20 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs= 1 P: Vendor=1e2d ProdID=00b7 Rev=04.14 S: Manufacturer=Cinterion S: Product=Cinterion USB Mobile Broadband S: SerialNumber=b3246eed C: #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=896mA I: If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan I: If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#=0x3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option Signed-off-by: Christoph Schemmel <christoph.schemmel@gmail.com> Link: https://lore.kernel.org/r/20210202084523.4371-1-christoph.schemmel@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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- 02 Feb, 2021 21 commits
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git://github.com/ojeda/linuxLinus Torvalds authored
Pull clang-format update from Miguel Ojeda: "Update with the latest for_each macro list" * tag 'clang-format-for-linux-v5.11-rc7' of git://github.com/ojeda/linux: clang-format: Update with the latest for_each macro list
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git://git.infradead.org/users/hch/dma-mappingLinus Torvalds authored
Pull dma-mapping fix from Christoph Hellwig: "Fix a kernel crash in the new dma-mapping benchmark test (Barry Song)" * tag 'dma-mapping-5.11-1' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: benchmark: fix kernel crash when dma_map_single fails
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
Pull vdpa fix from Michael Tsirkin: "A single mlx bugfix" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vdpa/mlx5: Fix memory key MTT population
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Jakub Kicinski: "Networking fixes for 5.11-rc7, including fixes from bpf and mac80211 trees. Current release - regressions: - ip_tunnel: fix mtu calculation - mlx5: fix function calculation for page trees Previous releases - regressions: - vsock: fix the race conditions in multi-transport support - neighbour: prevent a dead entry from updating gc_list - dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add Previous releases - always broken: - bpf, cgroup: two copy_{from,to}_user() warn_on_once splats for BPF cgroup getsockopt infra when user space is trying to race against optlen, from Loris Reiff. - bpf: add missing fput() in BPF inode storage map update helper - udp: ipv4: manipulate network header of NATed UDP GRO fraglist - mac80211: fix station rate table updates on assoc - r8169: work around RTL8125 UDP HW bug - igc: report speed and duplex as unknown when device is runtime suspended - rxrpc: fix deadlock around release of dst cached on udp tunnel" * tag 'net-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (36 commits) net: hsr: align sup_multicast_addr in struct hsr_priv to u16 boundary net: ipa: fix two format specifier errors net: ipa: use the right accessor in ipa_endpoint_status_skip() net: ipa: be explicit about endianness net: ipa: add a missing __iomem attribute net: ipa: pass correct dma_handle to dma_free_coherent() r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS net: mvpp2: TCAM entry enable should be written after SRAM data net: lapb: Copy the skb before sending a packet net/mlx5e: Release skb in case of failure in tc update skb net/mlx5e: Update max_opened_tc also when channels are closed net/mlx5: Fix leak upon failure of rule creation net/mlx5: Fix function calculation for page trees docs: networking: swap words in icmp_errors_use_inbound_ifaddr doc udp: ipv4: manipulate network header of NATed UDP GRO fraglist net: ip_tunnel: fix mtu calculation vsock: fix the race conditions in multi-transport support net: sched: replaced invalid qdisc tree flush helper in qdisc_replace ibmvnic: device remove has higher precedence over reset ...
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Andreas Oetken authored
sup_multicast_addr is passed to ether_addr_equal for address comparison which casts the address inputs to u16 leading to an unaligned access. Aligning the sup_multicast_addr to u16 boundary fixes the issue. Signed-off-by: Andreas Oetken <andreas.oetken@siemens.com> Link: https://lore.kernel.org/r/20210202090304.2740471-1-ennoerlangen@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxJakub Kicinski authored
Saeed Mahameed says: ==================== mlx5 fixes 2021-02-01 Please note the first patch in this series ("Fix function calculation for page trees") is fixing a regression due to previous fix in net which you didn't include in your previous rc pr. So I hope this series will make it into your next rc pr, so mlx5 won't be broken in the next rc. * tag 'mlx5-fixes-2021-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux: net/mlx5e: Release skb in case of failure in tc update skb net/mlx5e: Update max_opened_tc also when channels are closed net/mlx5: Fix leak upon failure of rule creation net/mlx5: Fix function calculation for page trees ==================== Link: https://lore.kernel.org/r/20210202070703.617251-1-saeed@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Jakub Kicinski authored
Alex Elder says: ==================== net: ipa: a few bug fixes This series fixes four minor bugs. The first two are things that sparse points out. All four are very simple and each patch should explain itself pretty well. ==================== Link: https://lore.kernel.org/r/20210201232609.3524451-1-elder@linaro.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Alex Elder authored
Fix two format specifiers that used %lu for a size_t in "ipa_mem.c". Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Alex Elder authored
When extracting the destination endpoint ID from the status in ipa_endpoint_status_skip(), u32_get_bits() is used. This happens to work, but it's wrong: the structure field is only 8 bits wide instead of 32. Fix this by using u8_get_bits() to get the destination endpoint ID. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Alex Elder authored
Sparse warns that the assignment of the metadata mask for a QMAP endpoint in ipa_endpoint_init_hdr_metadata_mask() is a bad assignment. We know we want the mask value to be big endian, even though the value we write is in host byte order. Use a __force tag to indicate we really mean it. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Alex Elder authored
The virt local variable in gsi_channel_state() does not have an __iomem attribute but should. Fix this. Signed-off-by: Alex Elder <elder@linaro.org> Reviewed-by: Amy Parker <enbyamy@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Dan Carpenter authored
The "ring->addr = addr;" assignment is done a few lines later so we can't use "ring->addr" yet. The correct dma_handle is "addr". Fixes: 650d1603 ("soc: qcom: ipa: the generic software interface") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Alex Elder <elder@linaro.org> Link: https://lore.kernel.org/r/YBjpTU2oejkNIULT@mwandaSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Heiner Kallweit authored
So far phy_disconnect() is called before free_irq(). If CONFIG_DEBUG_SHIRQ is set and interrupt is shared, then free_irq() creates an "artificial" interrupt by calling the interrupt handler. The "link change" flag is set in the interrupt status register, causing phylib to eventually call phy_suspend(). Because the net_device is detached from the PHY already, the PHY driver can't recognize that WoL is configured and powers down the PHY. Fixes: f1e911d5 ("r8169: add basic phylib support") Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/fe732c2c-a473-9088-3974-df83cfbd6efd@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Sabyrzhan Tasbolatov authored
syzbot found WARNING in rds_rdma_extra_size [1] when RDS_CMSG_RDMA_ARGS control message is passed with user-controlled 0x40001 bytes of args->nr_local, causing order >= MAX_ORDER condition. The exact value 0x40001 can be checked with UIO_MAXIOV which is 0x400. So for kcalloc() 0x400 iovecs with sizeof(struct rds_iovec) = 0x10 is the closest limit, with 0x10 leftover. Same condition is currently done in rds_cmsg_rdma_args(). [1] WARNING: mm/page_alloc.c:5011 [..] Call Trace: alloc_pages_current+0x18c/0x2a0 mm/mempolicy.c:2267 alloc_pages include/linux/gfp.h:547 [inline] kmalloc_order+0x2e/0xb0 mm/slab_common.c:837 kmalloc_order_trace+0x14/0x120 mm/slab_common.c:853 kmalloc_array include/linux/slab.h:592 [inline] kcalloc include/linux/slab.h:621 [inline] rds_rdma_extra_size+0xb2/0x3b0 net/rds/rdma.c:568 rds_rm_size net/rds/send.c:928 [inline] Reported-by: syzbot+1bd2b07f93745fa38425@syzkaller.appspotmail.com Signed-off-by: Sabyrzhan Tasbolatov <snovitoll@gmail.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Link: https://lore.kernel.org/r/20210201203233.1324704-1-snovitoll@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Stefan Chulski authored
Last TCAM data contains TCAM enable bit. It should be written after SRAM data before entry enabled. Fixes: 3f518509 ("ethernet: Add new driver for Marvell Armada 375 network unit") Signed-off-by: Stefan Chulski <stefanc@marvell.com> Link: https://lore.kernel.org/r/1612172139-28343-1-git-send-email-stefanc@marvell.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Xie He authored
When sending a packet, we will prepend it with an LAPB header. This modifies the shared parts of a cloned skb, so we should copy the skb rather than just clone it, before we prepend the header. In "Documentation/networking/driver.rst" (the 2nd point), it states that drivers shouldn't modify the shared parts of a cloned skb when transmitting. The "dev_queue_xmit_nit" function in "net/core/dev.c", which is called when an skb is being sent, clones the skb and sents the clone to AF_PACKET sockets. Because the LAPB drivers first remove a 1-byte pseudo-header before handing over the skb to us, if we don't copy the skb before prepending the LAPB header, the first byte of the packets received on AF_PACKET sockets can be corrupted. Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by: Xie He <xie.he.0141@gmail.com> Acked-by: Martin Schiller <ms@dev.tdt.de> Link: https://lore.kernel.org/r/20210201055706.415842-1-xie.he.0141@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Jakub Kicinski authored
Merge tag 'mac80211-for-net-2021-02-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== Two fixes: - station rate tables were not updated correctly after association, leading to bad configuration - rtl8723bs (staging) was initializing data incorrectly after the previous fix and needed to move the init later * tag 'mac80211-for-net-2021-02-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211: staging: rtl8723bs: Move wiphy setup to after reading the regulatory settings from the chip mac80211: fix station rate table updates on assoc ==================== Link: https://lore.kernel.org/r/20210202143505.37610-1-johannes@sipsolutions.netSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Maor Dickman authored
In case of failure in tc update skb the packet is dropped without freeing the skb. Fixed by freeing the skb in case failure in tc update skb. Fixes: d6d27782 ("net/mlx5: E-Switch, Restore chain id on miss") Fixes: c7569097 ("net/mlx5e: Add tc chains offload support for nic flows") Signed-off-by: Maor Dickman <maord@nvidia.com> Reviewed-by: Roi Dayan <roid@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Maxim Mikityanskiy authored
max_opened_tc is used for stats, so that potentially non-zero stats won't disappear when num_tc decreases. However, mlx5e_setup_tc_mqprio fails to update it in the flow where channels are closed. This commit fixes it. The new value of priv->channels.params.num_tc is always checked on exit. In case of errors it will just be the old value, and in case of success it will be the updated value. Fixes: 05909bab ("net/mlx5e: Avoid reset netdev stats on configuration changes") Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Maor Gottlieb authored
When creation of a new rule that requires allocation of an FTE fails, need to call to tree_put_node on the FTE in order to release its' resource. Fixes: cefc2355 ("net/mlx5: Fix FTE cleanup") Signed-off-by: Maor Gottlieb <maorg@nvidia.com> Reviewed-by: Alaa Hleihel <alaa@nvidia.com> Reviewed-by: Mark Bloch <mbloch@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Daniel Jurgens authored
The function calculation always results in a value of 0. This works generally, but when the release all pages feature is enabled it will result in crashes. Fixes: 0aa12847 ("net/mlx5: Maintain separate page trees for ECPF and PF functions") Signed-off-by: Daniel Jurgens <danielj@nvidia.com> Reported-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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